@BobbyBlastoff54321 it's not about the Petrov (which is not the actual opening I used in that game it was the Bird opening) but a colleague was analyzing the same opening at the same time, on the same IP but on a different floor of the building... 8 moves in and I get "Cheat detected". Haven't played from my work computer since... just on the phone or at home. No further incidents since :))
Here's the game: lichess.org/JU38rjgI
Here's the game: lichess.org/JU38rjgI